Getting Started with MultiMon
Learn how to install and set up MultiMon for multi-monitor video wall playback.
System Requirements
Before installing MultiMon, ensure your system meets these requirements:
- Operating System: Windows 10/11 (64-bit)
- Runtime: .NET 9.0 SDK
- GPU: DirectX 11 compatible graphics card
- RAM: 8GB minimum (16GB recommended)
- Storage: SSD recommended for optimal video playback
Installation
Download
- Visit the MultiMon Releases page
- Download the latest release ZIP file
- Extract to your preferred location
First Run
- Navigate to the extracted folder
- Run
MultiMon.exe - On first launch, Windows may prompt about .NET installation - follow the prompts if needed
Setting Up Your Display Configuration
Monitor Detection
MultiMon will automatically detect your connected monitors. You can:
- Open Settings → Display Configuration
- Arrange monitors to match your physical setup
- Set primary display preferences
Creating a Video Wall
- Click New Configuration
- Select which monitors to include
- Choose spanning mode (horizontal, vertical, or grid)
- Save your configuration for future use
Playing Your First Video
- Drag and drop a video file onto the display preview
- Press Play or use keyboard shortcut
Space - The video will span across your configured monitors
Supported Formats
MultiMon supports most common video formats:
- Standard: MP4, MOV, AVI, MKV, WebM
- Professional: ProRes (via system codecs)
- HAP Codec: HAP, HAP Alpha, HAP Q (GPU-accelerated)
Audio Configuration
Access audio settings via Settings → Audio Routing:
- Route audio to specific outputs
- Mix audio between displays
- Set up multi-channel configurations
Keyboard Shortcuts Reference
Transport Controls
| Key | Action |
|---|---|
| Space | Play/Pause toggle |
| K | Pause (reset speed to 1x) |
| L | Play / Speed up (1x → 2x → 4x) |
| J | Slow down / Reverse intent |
| Ctrl+L | Toggle loop |
Navigation
| Key | Action |
|---|---|
| Home | Jump to start |
| End | Jump to end |
| ← / , | Step back 1 frame |
| → / . | Step forward 1 frame |
Volume
| Key | Action |
|---|---|
| ↑ | Volume +5% |
| ↓ | Volume -5% |
Display & Performance
| Key | Action |
|---|---|
| F11 | Enter Perform Mode |
| Escape | Exit Perform Mode |
| F5 | Refresh devices |
Project Management
| Key | Action |
|---|---|
| Ctrl+S | Save project |
| Ctrl+Shift+S | Save As |
| Ctrl+O | Open project |
Tutorials
Learn more about MultiMon’s features:
- Standard Video Playback - Basic playback controls and project management
- Video Synchronization - How sync works and its limitations
- Quick Perform Files - Streamlined .mmplay files for live shows
- HAP Codec - GPU-accelerated playback for best performance
- Video Wall Setup - Span videos across multiple monitors
- Audio Mixer & Routing - Advanced audio configuration
- Settings & Configuration - Hardware acceleration, performance tuning, and preferences
Need Help?
- Report bugs on GitHub Issues